This is the WLAN internet dongle that connects your Fortress Power Envy inverter to your home network, so you can monitor and manage your system remotely through the Guardian mobile app.
The ENVYWLANDONGLE is a Fortress Power OEM accessory built to establish a reliable network link between your Envy-series hybrid inverter and the Fortress Power Guardian app ecosystem. Consistent connectivity matters for owners who rely on remote monitoring, firmware updates, and Virtual Power Plant (VPP) participation without needing an onsite technician visit. Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.
- Part Number / SKU: ENVYWLANDONGLE
- Connection Type: WLAN (wireless internet dongle)
- Positive Fitment: Designed for use with Fortress Power Envy Duo 21 and Envy 8/10kW Hybrid Inverter systems
- Negative Fitment: Not confirmed for use with non-Envy Fortress Power inverter models (e.g., Avalon, EdgeOn Duo, Solo 6.5K) — [NEEDS VERIFICATION]
- Negative Fitment: Not a power-carrying component — carries no AWG, ampacity, or voltage rating applicable to battery or AC/DC circuits
Wireless dongles mounted inside a metal inverter enclosure or behind a dense wall often suffer signal attenuation, leading to intermittent app dropouts that get mistaken for inverter faults. Confirm signal strength at the mounting location before final closeout — a weak or fluctuating connection can delay firmware pushes that resolve open communication fault codes on the Envy display. Use a smartphone Wi-Fi analyzer app (acting as your field-verification "tool" here, since a multimeter has no application to RF signal strength) to check signal quality at the dongle's exact install point, not just nearby. Document connection stability at commissioning — many utility interconnection and VPP enrollment requirements expect a verified, functioning remote monitoring link before the system is placed into active service.
- OEM-matched accessory engineered specifically for Fortress Power Envy inverter communication ports
- Supports remote firmware updates, reducing onsite service calls
- Enables Guardian app monitoring of solar production, battery performance, and grid consumption
- Supports Virtual Power Plant (VPP) program participation where available
- Simple plug-in installation alongside integrated inverter hardware
| Spec | Value | Unit |
|---|---|---|
| Part Number | ENVYWLANDONGLE | — |
| Connection Type | WLAN | — |
| Compatible Inverter Family | Envy Duo 21, Envy 8/10kW | — |
| Price | 152.99 | USD |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
- Fits: Fortress Power Envy Duo 21 hybrid inverter
- Fits: Fortress Power Envy 8/10kW Hybrid Inverter
- Does NOT fit: Non-Envy Fortress Power inverter models unless separately confirmed — [NEEDS VERIFICATION]
- Does NOT carry any electrical current, voltage, or battery rating — this is a data/communication accessory only
| Compliance Item | Value |
|---|---|
| UL Listing | [NEEDS VERIFICATION] |
| NEC Reference | [NEEDS VERIFICATION] |
| IP Rating | [NEEDS VERIFICATION] |
FAQ
What does the WLAN dongle do?
It connects your Fortress Power Envy inverter to your local Wi-Fi network so you can monitor performance and receive firmware updates remotely through the Fortress Power mobile app.
Which Fortress Power inverters is this dongle compatible with?
Per manufacturer data, it is referenced for use with the Envy Duo 21 and Envy 8/10kW Hybrid Inverter product families.
Is this dongle rated for 48V battery systems?
The dongle is a communication accessory, not a power or battery-rated component. Voltage rating does not apply. It is intended for data connectivity on Envy-series inverters, which are 48V hybrid systems.
Does this dongle work with other brands of inverters?
Manufacturer data provided does not list compatibility with any non-Fortress Power inverter. Do not assume cross-brand compatibility.
Warranty & Registration
Manufacturer warranty terms for the ENVYWLANDONGLE were not included in the provided data. [NEEDS VERIFICATION] — refer to the "Resources (System Manuals and Warranty)" Tab above on this page for the applicable warranty document. Ask us before you order if you need written confirmation of warranty terms for your specific installation.
